THE MICROSCOPE. 15 



some evidences of what I consider a fair lens. Have just received 

 the October, 1881, number of Phin's journal. Hope he will not 

 take another Rip Van Winkle nap shortly. I miss his journal when 

 It fails to come to hand. Should any questions suggest themselves, 

 they will meet a prompt reply. 



I seldom use camera lucida in drawing, unless it be to make 

 measurements. In Fig. 6 there was a faint trace of a line between 

 the double mass. I could not satisfy my mind whether this was a 

 single nucleus with two nucleoli, or two nuclei, each having a nu- 

 cleolus. The corpuscles 6, 9 and 10 concracted leaving b, diagram 

 15, transparent. By looking steadily at 4, 5, 6, 9 and 10, you will 

 notice that my drawings give more the impression of convexity than 

 concavity, and is in accordance with the view under the microscope. 

 Fig. 9 may be slightly exaggerated, yet the elevation was very 

 marked in the corpuscle. Figs. 4, 5, 6 and 10 satisfy me as faithful 

 copies of the original corpuscles, and so does 9, except the impres- 

 sion it makes of "coming up" (I know not otherwise how to express 

 it), still I do not mean that peculiar "rismg," of which Prof. Smith 

 writes, page 276, "How to See," and which I have often had to 

 fight as an "imp from below," in addition to simple increase of con- 

 vexity. Nos. II and 12 are also satisfactory, excepting the double 

 contour, which I cannot represent faithfully, as seen in the micro- 

 scope. I have merely hinted at it in the drawing 11, although the 

 better view under the microscope was corpuscle 12. 



EXPLANATION OF PLATE. 



Fig. I. Shows what I call concentric waves from faulty manipulation. 



Figs. 2. and 3. My idea of correct illumination of red corpuscle is in- 

 termediate between Nos. 2 and 3, (almost impossible to represent by a 

 drawing). No. 2 slightly within and No. 3 without the focus. 



Figs. 4, 5, 9 and 10. Individual corpuscles seen soon after the blood 

 was taken, showing bands and waves concentric to internal mass not to 

 circumference. 



Fig. 6. Either a single mass wkh two spots, or two masses with a 

 spot in each, seen at expiration of one hour. 



Figs. 7 and 8. A view of Nos. 4 and 5 at expiration of three hours 

 during which time contraction was gradually going on within but no change 

 in outer conformation. 



Fig. II. A representation of the more marked corpuscles in this case 

 as it appeared at expiration of four hours when internal contractions had 

 ceased. 



